EP 0060500 B1 19881109 - METHOD FOR PRODUCING MULTI-LAYERED PLATES
Title (en)
METHOD FOR PRODUCING MULTI-LAYERED PLATES
Publication
Application
Priority
DE 3110157 A 19810316
Abstract (en)
[origin: ES8306449A1] The invention relates to a method and a device for manufacturing multi-ply sheets of extrudable plastics material supplied by way of at least two webs which are produced by extruders having flat sheet dies and which are bonded to a structured insert web by means of rolls. Moreover, the invention relates to multi-ply sheets thus produced, especially for use with a shower enclosure. In manufacturing such multi-ply sheets it is difficult to obtain a reliable bond between the webs and the structured web without sophisticated machinery. There is also the requirement that the structured web be uniformly introduced between the webs. The invention proposes to feed these webs to a single common set of rolls and to arrange the flat sheet die of at least one extruder so close to a set of rolls that a reliable permanent bond to the structured web and/or at the other web is obtained by the heat accumulated and carried in the one web just extruded.
IPC 1-7
IPC 8 full level
A47K 3/30 (2006.01); B29C 43/24 (2006.01); B29C 43/30 (2006.01); B29C 47/02 (2006.01); B29C 47/06 (2006.01); B29C 63/00 (2006.01); B29C 63/02 (2006.01); B29C 70/68 (2006.01); B29D 16/00 (2006.01); B32B 27/06 (2006.01); B32B 37/15 (2006.01); B32B 37/16 (2006.01); B32B 38/04 (2006.01); B32B 38/06 (2006.01)
CPC (source: EP US)
A47K 3/30 (2013.01 - EP US); B29C 43/24 (2013.01 - EP US); B29C 43/305 (2013.01 - EP US); B29C 70/685 (2013.01 - EP US); B32B 15/02 (2013.01 - US); B32B 15/08 (2013.01 - US); B32B 21/08 (2013.01 - US); B32B 21/14 (2013.01 - US); B32B 37/153 (2013.01 - EP US); B32B 38/06 (2013.01 - EP US); B32B 2307/402 (2013.01 - US); B32B 2307/412 (2013.01 - US)
Designated contracting state (EPC)
AT DE GB NL
DOCDB simple family (publication)
EP 0060500 A2 19820922; EP 0060500 A3 19851016; EP 0060500 B1 19881109; AT E38485 T1 19881115; AU 544664 B2 19850606; AU 8151082 A 19820923; BR 8201344 A 19830125; CA 1176421 A 19841023; CH 658624 A5 19861128; DE 3279203 D1 19881215; ES 270921 U 19831016; ES 270921 Y 19840401; ES 510477 A0 19830601; ES 8306449 A1 19830601; FR 2501570 A1 19820917; FR 2501570 B1 19861121; IE 54746 B1 19900131; IE 820583 L 19820916; IT 1210676 B 19890920; IT 8247990 A0 19820315; US 4448739 A 19840515
DOCDB simple family (application)
EP 82101890 A 19820310; AT 82101890 T 19820310; AU 8151082 A 19820315; BR 8201344 A 19820312; CA 398323 A 19820315; CH 159782 A 19820315; DE 3279203 T 19820310; ES 270921 U 19830316; ES 510477 A 19820316; FR 8204466 A 19820317; IE 58382 A 19820315; IT 4799082 A 19820315; US 35733682 A 19820311